diff --git a/Directory.Build.props b/Directory.Build.props
index 76d1f2666944d..96c44f3a15700 100644
--- a/Directory.Build.props
+++ b/Directory.Build.props
@@ -2,12 +2,12 @@
 <Project>
   <Import Project="Sdk.props" Sdk="Microsoft.DotNet.Arcade.Sdk" />
   <PropertyGroup>
-    <LangVersion>10.0</LangVersion>
+    <LangVersion>latest</LangVersion>
+    <PackageLicenseExpression>MIT</PackageLicenseExpression>
+    <DisableImplicitNamespaceImports>true</DisableImplicitNamespaceImports>
+    <DisableImplicitNamespaceImports_DotNet>true</DisableImplicitNamespaceImports_DotNet>
   </PropertyGroup>
   <PropertyGroup Condition="'$(CopyrightNetFoundation)' != ''">
     <Copyright>$(CopyrightNetFoundation)</Copyright>
   </PropertyGroup>
-  <PropertyGroup>
-    <PackageLicenseExpression>MIT</PackageLicenseExpression>
-  </PropertyGroup>
 </Project>
diff --git a/src/Microsoft.DotNet.XHarness.CLI/Program.cs b/src/Microsoft.DotNet.XHarness.CLI/Program.cs
index 5b3f5f041ef10..ef81ffaaf6688 100644
--- a/src/Microsoft.DotNet.XHarness.CLI/Program.cs
+++ b/src/Microsoft.DotNet.XHarness.CLI/Program.cs
@@ -59,7 +59,9 @@ public static int Main(string[] args)
 
         public static CommandSet GetXHarnessCommandSet()
         {
+#pragma warning disable IDE0028 // Simplify collection initialization for DEBUG
             var commandSet = new CommandSet("xharness");
+#pragma warning restore IDE0028 // Simplify collection initialization for DEBUG
 
 #if !DEBUG
             if (RuntimeInformation.IsOSPlatform(OSPlatform.OSX))